Messages in this thread | | | From | Anant Thazhemadam <> | Subject | [PATCH 0/2] prevent potential access of uninitialized members in can_rcv() and canfd_rcv() | Date | Wed, 4 Nov 2020 03:09:04 +0530 |
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In both can_rcv(), and canfd_rcv(), when skb->len = 0, cfd->len (which is uninitialized) is accessed by pr_warn_once().
Performing the validation check for cfd->len separately, after the validation check for skb->len is done, resolves this issue in both instances, without compromising the degree of detail provided in the log messages.
Anant Thazhemadam (2): can: af_can: prevent potential access of uninitialized member in can_rcv() can: af_can: prevent potential access of uninitialized member in canfd_rcv()
net/can/af_can.c | 38 ++++++++++++++++++++++++++++---------- 1 file changed, 28 insertions(+), 10 deletions(-)
-- 2.25.1
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